Communications: directive radio wave systems and devices (e.g. – Clutter elimination – Mti
Patent
1995-10-02
1997-08-12
Ramirez, Ellis B.
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
Mti
364572, 382103, 342160, G01S 1352
Patent
active
056572514
ABSTRACT:
A computer-implemented process is disclosed for processing incoming target data from a focal plane or scanning radar to accomplish multiple Target Tracking. Inputs are pixel plane coordinates and intensity of target blips. The Intelligent Target Tracking Processor (ITTP) employs an optimal target tracking algorithm. An optimal observation-to-track assignment exists when all target blips in a new frame of target data are matched up with nearby tracks, such that the sum of all the distances from each target blip to its assigned track is minimized. An expert system is used to control overall processing flow and provide efficient allocation of computing resources. Target blips without near neighbors are allowed to go directly to a real track table of established tracks, if their coordinates match-up with projected tracking gates. Otherwise, target blips are tested sequentially against two-frame, three-frame, and four- or higher-frame discriminants, to reject blips not belonging to established tracks. The ITTP can partition the pixel plane into "bite size partitions", each with a manageable number of target blips, which it handles sequentially. The ITTP is designed to handle hundreds or thousands of targets as a stand-alone processor as is required in space object tracking or military scenarios. The expert system maintains an optimum balance between correlating on existing tracks and discriminating against impossible tracks. A total of 26 different metric and radiometric target tracking discriminants are employed. The ITTP is a dynamically and optimally configured set of general purpose parallel processors.
REFERENCES:
patent: 5499195 (1996-03-01), Custelaz
patent: 5557543 (1996-09-01), Parsons
patent: 5563806 (1996-10-01), Barry et al.
patent: 5587929 (1996-12-01), League
Field Harry B.
Ginsberg Lawrence N.
Ramirez Ellis B.
Rockwell International Corporation
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